US Bridges

Kingshighway over UP & BNSF RR

GoodPosted for load

St. Louis city, Missouri · S 19 T 45 N R 7 E · Structure no. 29758

Built
1993
32 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
498 ft
6 main spans
Daily traffic
50,000
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kingshighway over UP & BNSF RR is a steel continuous stringer/multi-beam or girder carrying Kingshighway over UP & BNSF RR in St. Louis city, Missouri. It was built in 1993, so it is 32 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 50,000 vehicles a day, roughly 5% of them trucks, projected to reach 67,500 by 2043. The structure is 498 ft (151.9 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesKingshighway
CrossesUP & BNSF RR
LocationS 19 T 45 N R 7 E
RouteCity Street 0
CountySt. Louis city
StateMissouri
Coordinates38.62322, -90.26551
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.4 US tons
Inventory rating37.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20 + Mod
Structure length498 ft (151.9 m)
Longest span114 ft (34.7 m)
Deck width89 ft (27.2 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50,000 (2023)
Projected traffic67,500 by 2043
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Kingshighway over UP & BNSF RR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Kingshighway over UP & BNSF RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Kingshighway over UP & BNSF RR carry?

About 50,000 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Kingshighway over UP & BNSF RR?

The structure is 498 ft (151.9 m) long with a longest span of 114 ft (34.7 m) and a deck 89 ft wide.

Who owns Kingshighway over UP & BNSF RR?

It is owned by the City or Municipal Highway Agency.